Electrodeposition and properties of Zn–Ni–CNT composite coatings

Zn–Ni–Al2O3 nano-composite coatings prepared by sol-enhanced electroplating

“…There is no report regarding chemical and mechanical properties of these coatings. Praveen et al [10] prepared Zn-Ni-CNT composite coatings by adding carbon nanotubes (CNT) to a sulphate bath. Their results indicated that the CNT inclusion improved the corrosion resistance, hardness and wear resistance of the coating.…”

Electrodeposition and corrosion behavior of Zn–Ni and Zn–Ni–Fe2O3 coatings

“…The inclusion of CNTs, TiO 2 , carbon black in Zn-Ni and Zn matrices brought down the corrosion rate and hence reduced the metal loss. 1,[9][10][11][12] However, no reports are available in the literature on the use of Fe 2 O 3 for fabricating Zn-Ni composite. There is an advantage of using Fe 2 O 3 , for obtaining Zn-Ni-Fe 2 O 3 composite, as it may impart greater stability to the composite coating.…”

Corrosion Inhibition of Zn in a 0.5 M HCl Solution by Ailanthus Altissima Extract

“…The apparent activation energies (E * a) for the corrosion process in the absence and presence of the plant extract were evaluated from Arrhenius equation. kcorr = Ae -E*a/RT (5) where kcorr is the corrosion rate (mg cm -2 min -1 ), A is the constant frequency factor, E * a is the apparent activation energy, R is the gas constant (8.314 J mol -1 K -1 ) and T is the absolute temperature. Plotting of the logarithm of Zn corrosion rate in HCl acid, in the absence and presence of the investigated extract, was made.…”

“…Zn corrodes in a solution with a pH lower than 6 and higher than 12.5, but, within this range, the corrosion is very slow [3]. Under aggressive conditions, Zn metal undergoes corrosion, gaining white colored rust [4,5]. Normally, white rust is observed in galvanized materials, and its occurrence remains a serious commercial problem.…”